Managing contact lists in Google Sheets can become tricky when duplicate entries start cluttering your data. Whether you’re organizing an email list, client database, or just trying to keep your spreadsheet tidy, removing duplicates is an essential task.

In this article, we’ll walk you through the step-by-step process of removing duplicate contacts from a column in Google Sheets. It’s simple, fast, and doesn’t require any add-ons.
Let’s get started.
Step 1: Open Your Google Sheet
First, open the Google Sheet that contains the contacts you want to clean up.
Make sure you’re on the correct sheet or tab where the data is stored before making any changes.
You can access Google Sheets at:
👉 https://www.google.com/sheets/about/
Step 2: Select the Column with Contact Data
Next, identify the column that holds the contact information you want to scan for duplicates.
- Click the letter at the top of the column (e.g., A, B, C) to highlight the entire column.
- This ensures that the duplicate removal process targets only your contact data and doesn’t affect unrelated content.
Step 3: Open the Data Cleanup Tool
With the correct column selected:
- Go to the menu bar at the top of Google Sheets.
- Click on “Data”.
- From the dropdown, hover over or click on “Data cleanup”.
- Then select “Remove duplicates” from the submenu.
This tool is designed to help clean your spreadsheet with just a few clicks.
Step 4: Confirm Columns to Check
After clicking “Remove duplicates,” a confirmation window will appear:
- Ensure the correct column is listed in the box.
- If your selection includes a header row (like “Contact Name” or “Email”), make sure to check the box labeled “Data has header row”.
- Click “Remove duplicates” to continue.
Step 5: Finalize and Clean Your Contact List
Google Sheets will process the column and show a message indicating how many duplicate rows were found and removed.
- Click OK to complete the process.
Your contact list is now clean, accurate, and free from duplicate entries!
Final Thoughts
Using Google Sheets’ built-in Remove Duplicates tool is a smart way to manage contact lists and ensure clean data without any extra software. This feature helps streamline your workflow and keeps your spreadsheets professional and error-free.
To explore more features of Google Sheets, visit:
👉 https://www.google.com/sheets/about/
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